S-92501A542 1 1/8"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through top lock distorted thread design that maintains clamp force in high-stress environments
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh industrial conditions
• Reliable mechanical strength meeting ASTM Grade C specifications for heavy-duty applications requiring consistent performance
• Precise thread engagement with Class 2B thread fit ensuring smooth assembly and secure fastening
• Easy installation and removal using standard wrench tools thanks to the external hex drive design
• Optimal thread retention through distorted thread technology that resists loosening under dynamic loads
• Regulatory compliance assurance with REACH and RoHS 3 certifications for environmental and workplace safety

Professional Applications & Engineering Value

This 1 1/8"-12 UNF locknut delivers exceptional engineering value through its top lock distorted thread technology, specifically designed to combat vibration-induced loosening in demanding industrial applications. The zinc-plated steel construction provides durable corrosion resistance while maintaining the ASTM Grade C strength required for heavy machinery, construction equipment, and automotive assemblies. The fine thread configuration offers superior clamping force distribution and better tension control compared to coarse threads, making it ideal for precision equipment where vibration resistance is critical. The external hex drive ensures compatibility with standard tools, streamlining maintenance procedures while the distorted thread locking mechanism eliminates the need for additional locking components, reducing assembly time and inventory complexity.

Specification Summary & Compliance

This industrial locknut features precise Class 2B thread fit tolerances with UNF fine thread specification (1 1/8"-12) and right-hand thread direction. Manufactured to ASTM Grade C strength standards with dimensions of 1 11/16" width and 1" height. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental safety and regulatory adherence for industrial applications worldwide.